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 Formula 271 Engine Alignment

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T O P I C    R E V I E W
B112 Posted - 03/05/2007 : 18:37:30
The following post is the project of Aligning a 1999 Mercury 502 Engine into a Formula Fastech 271. It is the original engine that was in the boat, except that the transom mount needed to be replaced. Since replacing the transom mount and reinstalling the engine, the alignment of the offshore mount would no longer accept the alignment tool inserted into the splined coupler mount on flywheel of the engine. This post will walk through the initial alignment of this engine and will be updated as the engine is finally aligned.

1) This video is showing the alignment tool actually getting into the engine, but the engine is not bolted down yet. After clamping the offshore mount to the aluminum mounts in the boat, the alignment tool no longer fits into the engine.



2) This video is showing how using a one inch rod you can see the bearing and how the engine aligns to the bearing. This is for a rough adjustment:


3) This is a photo of the hoist setup being used to lift the front of the engine:



4) This is a photo of the right mount from the top down:



5) This is a photo of the left mount (Port side of the boat mount):


6) This is a photo of the slight gap on the bottom of the right mount. The left mount has a similar but potentially smaller gap.


7) This photo a few lines are added to explain what is being described as the gap:


8) This photo is the right side a little closer:


9) This is the right side with the gap a little more apparent:


10) This is the right side closer to show the engine is a little lower and shifted from the original installation:


11) This shows all of the right side mount holes:


12 I got this advise from a boat specialist "Brand new transom assy, did he also change the bell housing on the engine?, the bushings in the inner transom plate are different from what they were when his boat was built, he will most likely need to change the rubber bushings in the engine bell housing". Now I am researching this and hopefully I don't have to pull the engine.

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